Bag filling and closing machine



May 8,1923. N 1,454,060

- J. D. LANE ET AL.

BAG FILLING AND CLOSING MACHINE Filed-May 15; 1922 9 sheets sheetl lees622mg? am J. D. LANE ET AL BAG FILLING AND CLOSING MACHINE .9Sheets-Sheet 2 Filed May 15, 1922 \xxx BAG FILLING AND CLOSING MACHINELANE ET AL Filed May 15, 1922 9 Sheets-Sheet 5 May 8, 1923.

J. D. LANE ET AL BAG FILLING AND cLos'IN G MACHINE 9 Sheets-Sheet 4Filed May 15.

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May 8, 1.923.

J. D. LANE ET AL BAG FILLING AND CLOSING MACHINE K Fild May 15 1922 9Sheets-Sheet v era'ms v (wee? lmljlria whiz I 7 022m: 7/

May 8, 1923.

J. D. LANE ET AL BAG FILLING AND CLOSING MACHINE Filed May 15, 1922 9Sheets-Sheet 8 Zas is 11- N "May 8, 1923. v

J. D. LANE ET AL BAG FILLING AND CLOSING MACHINE Filed May 15. 1922 '9SheetsSheet 9 izivewa 071s L 30727?) lawn/e 7072 7 aczmzy7a 7ia JOHN D.LANE, OF BOSTON,AND JAMES MACNAUGHTAN, OF BROOKLINE, MASSACHU- SETTS,ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO GORDAN MACHINE COMPANY,OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

Application filed ma 15,

To all whom it may comer n:

Be it known that we, JOHN D. LANE and JAMES MACNAUGHTAN, citizens of theUnited States, residing at Boston and Brookline, in the countiesofSuifolk and Norfolk, respectively, and State of Massachusetts, haveinvented new and useful Improvements in Bag Filling and ClosingMachines, of which the following is aspecification.

This invention packaging relatively small articles} by in-' serting apredetermined number or quantity in a 'bag flap atone end, and closingand sealing the flap to confine the charge.

The object of the invention is to provide a simple, durable andelficient machine, including an endless carrier, adapted to hold a bagsuccessively in a plurality of positions, and to perform a part ofthe'operati'on while the bag is in each position, and also includingmeans for simultaneously removing the bag from the carrier, completingthe closing of the mouth of the envelope, and delivering '25 the closedbag.

The invention is embodied in the improvements which we'will now proceedto describe and claim. v I,

Of the accompanying drawings forming. a part of this specification,-

Figure 1 is a front elevation of a machine embodying the invention,parts being broken F1gure'2 is a section on line 2-2 ofFigure 1.

Figure 3 is atop plan view, the hopper bein removed, and thehopper-supporting brac et, hopper shaft, and the delivery chute shown insection.

Figure 3 is a fragmentary plan view.

Figure 4: is an end elevation, parts being shown in section on line 4-4of Figure 3.

Figure 4 is a perspective view of a bag used with the machine.

Figure 5 is a section on line 5-5 of Figure 1. p

Figure 6 is a'sect-ion on line 6--6 of Figure 1.

Figure 6 is a fragmentary to a portion of Figure 6, showing a stage ofthe operation.

Figure 7 is. a section on line 7-- 7 of Figure 1. V

Figures 7 a view, V similar and 7" are fragnientaryviews relates tomachines for showing means for movlng formed as an envelope, having a"Figure 20, supported includes a single driving shaft 22, journaled ,inbearings 23, and

different I having BAG FILLING AND CLOSING MACHINE.

1922. Serial N0. 561,056.

similar? to portions of Figure 7, showing different stages of theoperation.

Figure 8 is a front view; and

Figure 9 an end view'of one of the bag carrlers.

Figure 10 is a section on Figure 9.

Figure 11 is a back-view of the carrier shown by Figures 8 and 9.

Figure 12 is a fragmentary elevation,

' the adjustable line 10- 10 of carrier jaws. Figure, 13 Figure'12.

13 is a view similar to Figure 13, showinga different stage of theoperation.

\ Figure 14 is a plan View; and

is a section on line 13-13 of 1 1 Figure'15-a side view of the hopper.

The supportin'g'frame includes abed plate by legs 21. The

N an endless sprocketchain 24, mounted on sprocket wheels 25 and :26,the wheel 25 being driven and the wheel 26 idle.

The shafts of said wheels are journaled in fiXedbearings on the frame,and the wheels support the chain with one stretch above, and the otherbelow the bed plate, said stretches being substantially parallel withthe driving-shaft.

Fixed to the chain are bag carriers 27, having guide-engaging flanges28, at their bases, and chain-engaging ears 29, connected by rivets 30with links of the chain. The carriers27 on the upper and lowerstretchesof the chain, preferably abut against each other, as shown by Figure 1.The carriers on-t'he upper stretch are guided between the sprocketwheels by a fixed horizontal guide, composed of spaced apart bars 31, onthe bed plate, and provided with grooves 32, which receive carrierflanges 28, when the flan es after rounding the sprocket wheel 26, ecomehorizontal and in line guide groove, the flanges moving into thegrooves.

The chain and carriers are moved. stepb -step by mechanism which mayinclude a eneva movement, comprising a disk 34, having studs 35, shownby dotted lines in Figure 1, a cam 36, fixed to the disk and reentrantcurved faces 37, and a cam 38, fixed to a driven shaft 39, carrying thesprocket wheel 25, and having radial slots endwise mechanism with the40, cooperating with the studs 85, and reentrant curved faces 41,cooperating with the cam 36. The disk 34 is fixed to a shaft42,.continuously driven by connections hereinafter described, with thedriving-shaft, the disk imparting in a well known manner a step-by-stepmovement to the sprocket chain, so that each carrier 27 on the upperstretch of the chain is held successively at five different stations.When at the first or bagreceiving station, the carrier cooperates with abag raceway, a picker which partly opens the foremost bag in theraceway, and removes it from the raceway, and'with mechanism foropening. and closing the carrier jaws, so that abag is transferred to,and grasped by the jaws. VVhenat the second or bag-filling station, thecarrier presents the bag to charge-delivering mechanism wherebyit isfilled. When at the third or Joag-gumming station,,the carrier presentsthe filled bag to gumming mechanism. When at the fourth or creasingstation, the carrier presents the bag fiap to creasing mechanism. Whenat the fifth station,-the carrier presents the bag to closing mechanism,organized to also discharge the bag from the machine. The sprocket wheel25, and the mechanisms which cooperate with the carriers 27, at theseveral stations, are operated by the driving shaft 22, through suitableconnections.

We will next describe in detail one of the carriers and the mechanismwhich co operates therewith at the receiving station.

The carrier 27, shown by Figures 8 to 11, is a rectangular shallowbox-shaped .block, upstanding from the upper stretch of the chain, andis provided with two pairs of bag-gripping jaws projecting from itsouter side, one pair being composed of jaws 47 and 48, and the other ofjaws 47" and 48 which are adjustable toward andfrom the jaws 47 and '48.Said jaws are arranged to project into the delivering end of a bagraceway or magazine 45, in which adetachment of bags 44 is yieldinglypressed toward 5 the delivering end, this end beinglocated at thebag-receiving station, and provided with pointed studs 46 (Figures 3 and4), which arrest the foremost bag at the de livering end, and permit theremoval of the .bag by a lateral pull thereon, causing its verticaledgestoyield and pass across the studs.

The jaws 47 and 48 are non-ad ustable and are mounted on a fixed ear 50,at one edge of the carrier, and the jaws 47 and 48 are adjustable andare mounted on an oscillatory lever 51, pivoted at 52 to the carrier,and yieldingly pressed by a spring 53 away from the non-adjustable jaws47 and 48, against a fixed stop 54, when the jaws are receiving a bag ofmaximum width. The adjustable jaws may be archain-driving.

a spring in position in its inoperative position by Figure 8', and

by full lines in Figure 11, and in an operative position by dotted linesin Figure. 11.

The jaws 47 and 47 are the outer ends of tubes or guides 59, one fixedto the ear 50, and the other to the lever 51. The jaws, 48 and 48 areshoulders or ears on the outer ends of studs or slides 60, which aremovable endwise in the guides, and are yieldingly held by springs 61, toclose one jaw on the other, or on a bag edge interposed be tween thejaws. The outer jaw of each pair is therefore spring-pressed toward-theinner. jaw. The slides 60 are automatically moved to open the jaws forthe reception of a bag, by mechanism including a rockshaft 62 (Figure4), journaled in a fixed bearing 63, arms 64, 64 and 65 fixed to therock shaft, the arm 65 having a trundleroll 66, and being pressed in onedirection by a spring 67 anda cam 68 on the driving-shaft, formed tocooperate with the spring in oscillating the arms and therockshaft.l/Vhen the carrier is at rest at the receiving station, the jaw-carryingslides 60 are in the paths of thearms 64. Said arms are oscillatedalternately to move the slides 60, to open the outer jaws 48 and48,

and permit the closing of said jaws by the a rocker-arm 72, pivoted at73, and hav- 'ing a trundle-roll 74, a rod 75, connectin the lever 69with the rocker-arm 72, an

76 exerting pressure on the lever 69 to hold the trundle-roll 74 againstthe cam 71. The magazine is automatically projected toward and retractedfrom'the carrier by this mechanism.

77 represents a vertically reciprocating picker blade, connected by anarm 78 to a slide 79, movable vertically in a fixed guide 80. The slideand picker blade are reciprocated by an arm 81, pivoted at 82 to a fixedsupport 83, and provided with a trundleroll 84, and a cam groox e 85, ina disk on the driving-shaft. The foremost bag in the raceway 45 is heldin the path of the picker blade by the stops-46, when the raceway isprojected' When the blade is.

raised, its lower end portion bears on the upwardly projecting flap 44(Figure 4*) at the upper end of the bag. The descent toward each other,so that when the race-,

way is retracted, the bag stops 46 on the raceway, slip easil across theedges of the bag, leaving'the atter supported entirely by the blade.

The outer jaws48, 48 on the carrier are moved forward, after the bladedescends,-

, and brush across ,the edges of the bag, leav 'matic charge-segregatingmg said edges between the outer and inner jaws. The outer gripper jaws48 and 48 are then released and close on the edges of the bag, which isnow firmly clamped against the jaws 47, 47, preparatory to being movedby the carrier to the filling station.

7 After thespicker blade rises from the bag, the carrier is movedforward to the filling station, and comes to rest with the bag under adelivering chute 87 (Figure 2), to which a charge is delivered at apredetermined time, by a hopper 88, having autoand releasing means,arranged to deliver charges to the chute at predetermined intervals.Before a charge is delivered to the bag now under consideration, theadjustable jaws 47, 48 are moved toward the non-adjustable jaws 47, 48,sufliciently to bulge the sides of the bag outward, and thus ensure theentrance of-the charge into the mouth of the bag, without spilling. Thismovement of the adjustable jaws is caused by a wedge 89, carried by onearm of a lever 90, which is fulcrumed at 92 (Figure 2), and has atrundleroll 93 on the other arm, held by a spring 94 against a cam 95 onthe driving-shaft. As shown by Figures 12 and 13, the inclined face ofthe Wedge 89 is normally below the slide 60, carried by the lever 51.Before the charge is delivered, the Wedge is raised, as shown by Figure13, and its inclined face bears on the slide 60, on the lever 51, andswings said lever toward the non-adjustable jaws, as indicated by dottedlines in Figures 11 and 13, thereby adequately opening the mouth of thebag, as shown by Figure 2.

Before the carrier moves forward to the gumming' station, the wedgedrops and the adjustable jaws are moved by the spring 53 away from thenon-adjustable jaws to exerttension on the mouth portion of the bagbetween the two pairs of jaws, and thus flatten the sides of the mouthportion preparatory to the closing operation. I

The mouth of the bag having been drawn taut, and straightened as abovedescribed, at the filling station, the carrier moves forward to thegumming station, where, as shown by Figure 5, the flap 44 is interposedbetween the outer edge of a fixed horizontal flange 97, and a movableear or back stop 98. The flange 97 projects forward from a gum tank 99,containing a gum-raising roll 99*, which is journaled in bearings on thetank and is driven by the driving-shaft through connections including asprocket wheel 100,- a chain 101, a shaft 102, having a sprocketwheelcarried by a rock-shaft 109, journaled in fixed bearings, andprovided with an arm 110, having a stud 111, engaging one end of a rod112. The other end of said rod has a slot in which is a sliding block113, engaged with a wrist-pin 114, on a rotating wheel,'in this instancethe sprocket wheel 103. The revolution of the wrist-pin reciprocates therod 112, and the latter oscillates the rockshaft 109, and imparts alateral oscillating movement to the transferring-roll107, which is thuscaused to first contact with and be rotated by the gum roll 99*, untilits periphery is coated with gum, and then contact with the upstandingbag flap 44, and apply gum thereto. To enable the transferring-roll tocontact yieldingly with the gum roll and he flap, springs 113 are interosed between the block 113 and the ends of t e slot in which it slides.

' The transferring roll preferably has peripheral grooves 107, so thatit hasspaced apart peripheral ortions, adapted to apply spots of gum tot e flap. The back stop 98 is preferably provided with slots 98,coinciding with the peripheral portions of the transferring-roll, so.that the back stop will not be gummed, if the roll moves forward when aflap is not present.

The carrier next moves to the creasin tion, when the gummed fiap iscrease partly bent over r'ep-aratory to being folded against one si e ofthe bag, to complete the closing and sealing of the bag.

\Vhile the carrier is moving to the creasing station, thenow vuprightflap 44 is bent inward from the position shown by Figure 5, to thatshown by Figure 6, by the conjoint action of a fixed creasing blade 117,on a stafixed support 117, and a presser 119, having an inclinedtapering lip 120. The presser is supported by a movable bar 121, whichalso supports and moves the back stop 98 (see Figure 1). The bar ismovedto impart the above-described movements to the back stop, and tomove the presser as presently described, by the mechanism shown byFigure 6, and including an oscllla-tory arm 122, pivoted at 123 to afixed support, a. bell-cranklever 124, mounted to oscillate on a fixedstud 125, an oscillatory arm 126, pivoted at 127, to a fixed support,and provided with a trundle-roll 128, pressed by a. spring 12 against acam 130, on the driving-shaft. The bell-crank lever 124 IS and"connected by a rod 131, with the free end of the lever 122, and by, arod 132 with the free end of the, lever 126. The bar 121 is pivoted at127 to the lever 122, and is pressed yieldingly against the blade 117during the creasing operation by a spring 128. The described mechanismisorganized' to move the presser, both crosswise and toward and from theedge of the creasing blade, the presser being moved from the positionshown by' Figure 6 to that shown by Figure 6, to

bend the flap 44 over the creasing blade,

and press itagainst the creasing edge, thus forming the crease 44,'indicated by the dotted line in Figure 4 The presser lip 120 acts tobend the flap inward over the-creasing blade, while the f carrier is,moving to the creasing station, and before the flap is creased. The flapnow stands at an angle to the plane of the bag, as indicated by Figure6. {The carrier finally moves forward to the closing and deliverinstation, where the flap is additionall Folded, and its gummed surface ispresse against one side of the bag to seal the bag mouth. I

When the carrier reaches the closing and delivering station, the creasedflap occupying the position shown by dotted lines in Figure 6 is in thepath of a series of pairs ofilap-closing jaws, mounted on a wheel 130,which is fixed to a shaft 131, journaled in hearings in a fixed standard132*, at one end portion of the frame. Said wheel is rotated in thedirection of the arrow Figure 7, by mechanism including a counter-shaft133,.journaled in a fixed bearin 134, and

provided at one end with a beve gear 135,-

meshing with a like gear 136, on the wheel shaft, a'ndat the other endwith a spur gear 137, a shaft 138 "parallel with the shaft 133,

and providedwith a gear 139, and an intermediate gear 140, connectingthe gears 137 and 139. The shaft 138 has a bevel gear 141, meshing witha like gear 142 (Figure 3), on the driving-shaft. Each pair offlapclosin jaws includes a tangentially arranged innerijaw 143, seatedon a face. 144 on the perimeter of the wheel, and an outer jaw 145,connected by a hinge 146, with the inner jaw. The wheel is hollow, andis formed internally to encloseiia stationary earn 147 on the perimeterof which run trundle-rolls 148, journaled in arms 149, whichare'fixed'to the outer jaws, and pass through slots 150 in the innerjaws. Springs 151 interposed between the inner jaws, and shoulders onthe arms 149, serve to press the rolls 148 against the cam andclose theouter jaws on the inner j awswhen the rolls reach the recessed rtion ofthe cam.' B

When the carrier is at,rest, at the closing opened, the jaws beingopened when an raeaoso proaching the bag, as shown by Figure 7 thencloslng and pressing the flap against the side of the bag, as shown byFigure 7 and remaining closed until the bag-is removed from the carrierjaws, and carried by the revolution of the flap-closing jaws into aninclined chute or Yguide-152. The flap-closing jaws, therefore perform.two

sufiiciently outward from the carrier to slide down the chute.

The carrier jaws are opened to release the bag, just as the flap-closingjaws take control of the bag, so that there is no resistance to theremoval of the bag from the carrier. To this end there is provided a bar154 (Figure 7), arranged to bear simultaneously on the slides 60 of thecarrier jaws, when the latter is at the closing station. Said bar ismoved edgewise toward and from the carrier by a rocker a'rm 155, towhich the bar is attached, said arm being pivoted to swing on the fixedstud 125, and provided with an car 156, which is pivoted to the rod 132,

forming a part of the presser-operating mechanism. When the bar 154 isgnoved againstthe slides-60, the outer carrier jaws 48, 48 are forcedoutward, and release the ba sit: direction, the said jaws close upon thejaws 47, 47, and remain closed until the carrier is returned by thechain tothe receiving station.

Returning to the filling station, it may be said that any suitablemechanism may be provided for delivering measured charges'to the chute87, when a carrier is in position-to hold an opened bag under the chute.The

mechanism here" shown for this purpose in- -.bracket 164. A non-rotatingcam 165 is fixed to said bracket, the contour of the groove of saidcam'being shown by dotted lines in Figure 14. The hopper 88 is providedin its inclined bottom with short tubes 166, open at both ends, theirupper ends being flush with'the upper surface of the hopper bottom. Saidtubes constitute the walls of charge-measuring cups, the bottoms of,

which are formed by valves 177, adapted to slide across the lower endsof the tubes and open and close the same. The valves are op erated bythe fixed cam 165,,and by levers 17 8, having trundle-rolls 179, runningin the groove of, said cam. The valves are prol/Vhen the bar is moved inthe oppobag through the machine, and the operation vided with stems 177,fixed to offset portions of the levers, as shown by Figure 14. Thelevers are connected by pivotscrews 180, with the bottom of the hopper88. The arrangement is such that each.tube is closed by its valve, untilit is in delivering position over the chute 87 the valve, and the leverwhich supports it, being then swung inward by the cam 165, as shown atthe-left in Figure 14. When a tube has delivered a charge and is movedaway from the chute, the cam closes the valve, which remains-closeduntil the tube returns to its position over the chute. I

The valves have a wiping contact with the lower ends of the tubes,preventingadhesion of the charge material to said lower of the series ofmechanisms thereon is as 1 follows:

The picker blade being raised, the raceway is projected to press theflap of the foremost bag against the blade. The blade descends with thebag, separating its sides and reducing the distance between its verticaledges, so that when the raceway is retracted, its bag stops slip easilyacross the edges of. the bag, leaving the latter on the blade. Acarrieris held by the chain at the receivmg stationwhile the picker blade isdescending, and its grippers engage the thereat, the back vertical edgesof the bag near their upper ends, while the bag is on the depressedblade. After the bag is thus secured to the carrier, the blade rises andthe carrier is moved forward to the filling station. The adjustablecarrier jaws are moved toward the non-adjustable jaws,'when the carrierreaches the filling station, and thus bulge the sides of the mouthportion of the bag outward. The'bag is filled while at rest at\.

the filling station, and before the carrier is again'moved forward, theadjustable carrier jaws are moved away from the nonadjustable jaws tostraighten the sides of the mouth portion of the bag, and prepare theflap for gumming.

The carrier is next moved forward to the 'gumming station, and 3 whenitis at rest stop is moved inward against the flap and spots of gumareapplied to the flap by the gum-transferring roll while the flap issupportedby the back stop. The transferring-roll and the back stop nowmove in.opposite directions from the flap, and the carrier is movedforward to the creasing station, where the gummed flap is creased andpartly folded, by the conjoint action of the creasing blade and thepresser, the latter moving upon the bag flap,

and pressing it against the creasing blade,

after the carrier comes to rest ing station. The presser is then movedaway from the creased flap, and the carrier is moved forward to theclosing and delivering station, where it holds the flap in the path ofthe revolving flap-closing jaws. Thecarrier jaws, which up to thispoint, have gripped the bag, are opened to release the bag, when controlis taken of the bag by said revolving jaws.

We; have heretofore referred to the chain 24 as a belt, and althoughthis member is preferably composed of links adapted toengage sprocketwheels, it is obvious that it may be otherwise constructed to bepositivelydriven step-by-step. To enable the carrier jaws to enter thedelivering end of the race- Way, when the latter is projected, weprovide the sides of the raceway with recesses 45, formed to receive thejaws, as shown by Figure 4.

The carrier jaws are located at the outer portions of the carriers, sothat a bag is grasped by the jaws at points above the center ofgravityof the body of the bag and the chargebeing suspended from the jaws, andfree fromliability-to be accidentally displaced sidewise. In case a bagis not present at the filling station when the charge is liberatedthereat, the charge is conducted forward and downward by a fixedspillway 190, arranged as shown by Figures 1 and 2.

The horizontally guided belt, the series of operating mechanismsarranged in tandem order at the several stations, the driving-shaft,arranged substantiall .parallel with the upper stretch of the be t, andthe operating connections extending transversely between thedriving-shaft and the series of: mechanisms constitute a simple andcompact machine, adapted to operate accurately,

and with reasonable rapidity.

We claim:

1. A bag-filling machine comprising, in combination, an endless belt,means maintaining an upper stretch of the belt in a substantiallyhorizontal position, said means including spaced apart wheels engagingthe belt, and a fixed guide between said wheels supporting the upperstretch, jaw-carriers fixed to the belt, bag-engaging jaws supported bysaid carriers and arranged in groups, each group arranged to engage abag, the carriers and jaws on the upper I stretch of the belt beingmaintained in a predetermined path by said guide, a drivingshaftsubstantially parallel with the guide,

bag and its charge, theat the creasoperating mechanism connecting thedriving-shaft with one of said wheels, and organits deliverin blade, andretracted from said path, and

ized to impart a stepby-step movement to the belt, the arrangement beingsuch that each j aw-carrier on the upper stretch is held suecessively ata series of stations, the first of which is a bag-receiving station, abag-supplying mechanism organized to engage a bag with the jaws at thereceiving station, operating connections between said supplyingmechanism. and the driving-shaft, a seriesof following mechanismsorganized to cooperate successively with a bag held by the jaws at theother stations, to fill, gum, crease and close, the engaged bag, andoperating connections between said mechanisms and the driving shaft.

2; A bag-filling machine substantially as specified by claim 1', thesaid carriers projecting upward from the upper stretch of p the belt,and their jaws being located at the upper portions of the carriers, sothatthe center of gravity of a filled bag is below the aws.

J 3. A bag-filling machine substantiallyas specified by claim 1, thesaid supplying mechanism including. means for opening the jaws to causethem to grasp a bag between them, and the said closing mechanismincluding means for opening the jaws to release a bag.

4. A bag filling machine substantially as specified by claim 1, the saidbag-supplying mechanism comprising a vertically reciprocating pickerblade, a longitudinally reciprocating bag raceway, having bag stops atits delivering end, and held alternately with end in the path of thepicker means for opening the jaws to permit their engagement with a bagdetached from the raceway by the picker blade. 5. A bag-filling machinesubstantially as specified by claim 1, the said bag-supplying mechanismcomprising a vertically reciprocating picker blade, a longitudinallyreciprocating bag raceway, having bag stops at its delivering end, andheld alternately with its delivering end in the path of the pickerblade,'and retracted from said path, and means for opening the jaws topermit their engagement with a bag detached from the raceway by thepicker blade, the delivering end of the raceway being recessed toreceive the carrier jaws when the raceway is projected.

6. A bag-filling machine substantially as specified by claim 1, each ofsaid carriers coin rising a'rigid block-fixed at one edge to t c saidbelt, and provided-at its outer portion with two pairs of jaws, eachincluding an inner jaw, which is immovable crosswise of the carrier, anda spring-pressed outer jaw, which is movable crosswlse of the carrier,and is' provided with a'slide whereby it may be opened, the saidopera-ting mechanism at the receiving station including i-means formoving the slides simultaneously to open thejaws preparatory to theengagement of a bag therewith.

7. A bag-filling machine substantially as specified by claim 1, each ofsaid carriers comprising a rigid ,blockfixed at one edge to the said"belt, and provided at its outer ing mechanism at the receiving stationin- I cluding means for moving the slides simul taneously to open thejaws preparatory to the engagement of a bag therewith, one pair of jawsbeing non-adjustable, and the other pair adjustable toward and from thenonadjustable jaws, the carrier being provided with means for movablysupporting the adjustable jaws, and the said operating mechanismincluding means for moving the adjustable jaws to alternately bulge andstraighten the sides of the engaged bag.

8. A bag-filling machine substantially as specified by claim 1, each ofsaid carriers comprising a rigid block fixed at one e ge to the saidbelt, and provided at its outer portion withtwo pairs of jaws, eachincluding an inner aw, which is immovable crosswise of the carrier, anda spring-pressed outer jaw, which is movable crosswise of the carrier,and is provided with a slide whereby it may be opened, the saidoperating mechanism at the receiving station including means formovingthe slides simultaneously to open the jaws preparatorylto theengagement'of a bag therewith, one pair of jaws being non-adjustable,and the other pair adjustable toward and from the'non-adjustable jaws,the carrier being provided with means for movably supporting theadjustable jaws, and thesaid operating mechanism including means formoving the adjustable jaws to alternately bulge andstraighten the sidesof the engaged bag, the carrler being provided with an adjustable stopfor limiting the separation of the adjustable from the non-adjustablejaws, in accordance with the width of the bag.

9. A bag-filling machine substantially as specified by claim 1,, thesaid filling inech anism including a rotary hopper, located at thefilling station, and provided with aese'ries nism actuated by therotation of the hopper for opening and closing said valves, each valvebeing opened when the cup, of which it forms a part, is in deliveringposition.

10. A-bag-filling machine substantially as specified by claim 1, themechanism at the gumming station including a gum tank, having a.partially exposed gum-raising roll, located at the inner side of thebagflap held at the gumming station, a back stop, located at the oppositeside of said flap, and a laterally movable gum-transferring roll adaptedto contact alternately With the gum-raising roll and with a flap backedby said stop, the operating connections with the driving-shaft, at thegumming station, being organized to reciprocate the transfer.- ring rolland the back stop laterally.

11. A bag-filling machine substantially as specified by claim 1, themechanism at the gumming station including a gum tank, having apartially exposed gumraising roll, located at the inner side of a bagflap held at the gumming, station, a laterally movable back stop,located at the opposite side of said flap, and a laterally movablegum-transferring roll adapted to contact alternately with thegum-raising roll, and a flap backed by said stop, the operatingconnections with the driving-shaft, at the gumming station beingorganized to reciprocate the transferring roll and the back stoplaterally, and including means for pressing the transferring rollyieldingly against the gum-raising roll and against the flap.

12. A bag-filling machine substantially as specified by claim 1, /the'mechanism at the gumming station including a gum tank, having apartially exposed gum-raisingroll, located at the inner side of a bagflap held at the gumming station, a laterally movable back stop, locatedat the opposite side of said flap, and a laterally movablegum-transferring roll adapted to contact alternately with thegum-raising roll, and a flap backed by said stop, the operatingconnections with the driving-shaft at the gumming station beinglaterally movableorganized to reciprocate the transferring roll and theback stop laterally, the transferring roll being peripherally grooved toapply gum in spots, and the back stop being slotted to prevent contactwith the transferring roll, in the absence of a bag flap.

13. A bag-filling machine substantially as specified by claim 1, havinga creasing station, the mechanism thereat including a fixed creasing abag flap held at the'creasingstation, a prcsser located above thecreasing blade and at the outer side of said flap, the operatingconnections with the driving-shaft at the creasing station beingorganized to move the presser laterally crosswise of the creasing blade,and downward toward the edge of said blade to partially bend the flapand then crease the same. a

" 14. A bag-filling machine substantially as specified by claim 1,having a bag-closing and delivering station, the'mechanism thereatincluding a wheel rotated by operating connections with thedriving-shaft, in a plane substantially at right angles to the plane inwhich a bag is held at said station, and provided with a series oftangentially arranged inner jaws, a series of swinging outer jaws hingedto the inner jaws, and means operated by signatures.

. JOHN 1). LANE.

. JAMES MACNAUGHTAN blade, located at the inner side of the rotation ofthe wheel 'to alternately open and close the jaws, a

